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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++03, c++11, c++14, c++17
// UNSUPPORTED: libcpp-no-concepts
// UNSUPPORTED: libcpp-has-no-incomplete-ranges
// template<class... Args>
// requires constructible_from<T, Args...>
// constexpr explicit single_view(in_place_t, Args&&... args);
#include <ranges>
#include <cassert>
#include "test_macros.h"
struct TakesTwoInts {
int a_, b_;
constexpr TakesTwoInts(int a, int b) : a_(a), b_(b) {}
};
constexpr bool test() {
{
std::ranges::single_view<TakesTwoInts> sv(std::in_place, 1, 2);
assert(sv.data()->a_ == 1);
assert(sv.data()->b_ == 2);
assert(sv.size() == 1);
}
{
const std::ranges::single_view<TakesTwoInts> sv(std::in_place, 1, 2);
assert(sv.data()->a_ == 1);
assert(sv.data()->b_ == 2);
assert(sv.size() == 1);
}
return true;
}
int main(int, char**) {
test();
static_assert(test());
return 0;
}
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